'Lights' in the Bible

"When any one lights a lamp, he does not cover it with a vessel or hide it under a couch; he puts it on a lampstand, that people who enter the room may see the light.

"When any one lights a lamp, he never puts it in the cellar or under the bushel, but on the lampstand, that people who come in may see the light.

Then, calling for lights, he sprang in and fell trembling at the feet of Paul and Silas;

so that you may always prove yourselves to be blameless and spotless--irreproachable children of God in the midst of a crooked and perverse generation, among whom you are seen as heavenly lights in the world,